Allen Nissenson

Insider

First SEC filing: Feb. 4, 2021 · Latest: Feb. 4, 2021

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Insider at Companies where this person is a reporting insider.
Insider transactions Every share this person bought or sold, from Form 4 filings.
Derivatives Options and other derivative holdings reported by this person.
Initial holdings The stakes this person held when they first started reporting.

Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 66 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

66 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
July 1, 2026	RMTI	A	9,633	—	—	23,892 Direct	+67.56%	Acquired	(price as of 2026-08-21)
May 20, 2025	RMTI	A	50,000	—	—	142,597 Direct	+54.00%	Acquired	(price as of 2026-08-21)
May 21, 2024	RMTI	A	36,111	—	—	92,597 Direct	+63.93%	Acquired	(price as of 2026-08-21)
Dec. 28, 2023	ELTX	A	4,100	—	—	4,100 Direct	—	Acquired	(price as of 2026-08-21)
May 23, 2023	RMTI	A	24,715	—	—	124,203 Direct	+24.84%	Acquired	(price as of 2026-08-21)
June 7, 2022	RMTI	A	25,000	—	—	99,488 Direct	+33.56%	Acquired	(price as of 2026-08-21)
Feb. 13, 2014	DVA	M	13,168	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
Feb. 13, 2014	DVA	S	2,547	$66.16	$168,510	8,990 Direct	-22.08%	Disposed	165.3% (price as of 2026-08-21)
Feb. 13, 2014	DVA	F	4,591	$66.35	$304,613	11,537 Direct	-28.47%	Disposed	164.5% (price as of 2026-08-21)
Feb. 13, 2014	DVA	M	13,168	$23.13	$304,576	16,128 Direct	+444.86%	Acquired	658.8% (price as of 2026-08-21)
Dec. 17, 2013	DVA	M	4,766	—	—	13,168 Direct	-26.58%	Disposed	(price as of 2026-08-21)
Dec. 17, 2013	DVA	S	2,929	$59.83	$175,242	2,508 Direct	-53.87%	Disposed	193.4% (price as of 2026-08-21)
Dec. 17, 2013	DVA	F	1,837	$60.02	$110,257	5,437 Direct	-25.25%	Disposed	192.4% (price as of 2026-08-21)
Dec. 17, 2013	DVA	M	4,766	$23.13	$110,238	7,274 Direct	+190.03%	Acquired	658.8% (price as of 2026-08-21)
May 13, 2013	DVA	M	1,200	—	—	8,967 Direct	-11.80%	Disposed	(price as of 2026-08-21)
May 13, 2013	DVA	S	776	$130.37	$101,167	1,254 Direct	-38.23%	Disposed	169.3% (price as of 2026-08-21)
May 13, 2013	DVA	F	424	$131.19	$55,625	2,030 Direct	-17.28%	Disposed	167.6% (price as of 2026-08-21)
May 13, 2013	DVA	M	1,200	$46.26	$55,512	2,454 Direct	+95.69%	Acquired	658.8% (price as of 2026-08-21)
March 19, 2013	DVA	A	2,000	—	—	2,000 Direct	—	Acquired	(price as of 2026-08-21)
March 19, 2013	DVA	M	2,000	—	—	2,000 Direct	—	Acquired	(price as of 2026-08-21)
March 6, 2013	DVA	M	1,333	—	—	10,167 Direct	-11.59%	Disposed	(price as of 2026-08-21)
March 6, 2013	DVA	M	2,917	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
March 6, 2013	DVA	S	833	$123.34	$102,742	1,254 Direct	-39.91%	Disposed	184.6% (price as of 2026-08-21)
March 6, 2013	DVA	F	500	$123.35	$61,675	2,087 Direct	-19.33%	Disposed	184.6% (price as of 2026-08-21)
March 6, 2013	DVA	M	1,333	$46.26	$61,665	2,587 Direct	+106.30%	Acquired	658.8% (price as of 2026-08-21)
March 6, 2013	DVA	S	1,589	$124.00	$197,036	1,254 Direct	-55.89%	Disposed	183.1% (price as of 2026-08-21)
March 6, 2013	DVA	F	1,328	$123.35	$163,809	2,843 Direct	-31.84%	Disposed	184.6% (price as of 2026-08-21)
March 6, 2013	DVA	M	2,917	$56.14	$163,760	4,171 Direct	+232.62%	Acquired	525.3% (price as of 2026-08-21)
Dec. 18, 2012	DVA	A	750	—	—	750 Direct	—	Acquired	(price as of 2026-08-21)
Nov. 15, 2012	DVA	M	7,000	—	—	11,500 Direct	-37.84%	Disposed	(price as of 2026-08-21)
Nov. 15, 2012	DVA	S	4,110	$112.50	$462,375	925 Direct	-81.63%	Disposed	212.0% (price as of 2026-08-21)
Nov. 15, 2012	DVA	F	2,890	$112.05	$323,824	5,035 Direct	-36.47%	Disposed	213.3% (price as of 2026-08-21)
Nov. 15, 2012	DVA	M	7,000	$46.26	$323,820	7,925 Direct	+756.76%	Acquired	658.8% (price as of 2026-08-21)
Aug. 6, 2012	DVA	M	4,967	—	—	18,500 Direct	-21.17%	Disposed	(price as of 2026-08-21)
Aug. 6, 2012	DVA	M	2,917	—	—	2,917 Direct	-50.00%	Disposed	(price as of 2026-08-21)
Aug. 6, 2012	DVA	S	2,652	$99.00	$262,548	925 Direct	-74.14%	Disposed	254.6% (price as of 2026-08-21)
Aug. 6, 2012	DVA	F	2,315	$99.29	$229,856	3,577 Direct	-39.29%	Disposed	253.6% (price as of 2026-08-21)
Aug. 6, 2012	DVA	M	4,967	$46.26	$229,773	5,892 Direct	+536.97%	Acquired	658.8% (price as of 2026-08-21)
Aug. 6, 2012	DVA	S	1,267	$98.72	$125,078	925 Direct	-57.80%	Disposed	255.6% (price as of 2026-08-21)
Aug. 6, 2012	DVA	F	1,650	$99.29	$163,828	2,192 Direct	-42.95%	Disposed	253.6% (price as of 2026-08-21)
Aug. 6, 2012	DVA	M	2,917	$56.14	$163,760	3,842 Direct	+315.35%	Acquired	525.3% (price as of 2026-08-21)
May 23, 2012	DVA	M	8,000	—	—	23,467 Direct	-25.42%	Disposed	(price as of 2026-08-21)
May 23, 2012	DVA	M	8,750	—	—	5,834 Direct	-60.00%	Disposed	(price as of 2026-08-21)
May 23, 2012	DVA	S	3,388	$80.00	$271,040	925 Direct	-78.55%	Disposed	338.8% (price as of 2026-08-21)
May 23, 2012	DVA	F	4,612	$80.25	$370,113	4,313 Direct	-51.68%	Disposed	337.4% (price as of 2026-08-21)
May 23, 2012	DVA	M	8,000	$46.26	$370,080	8,925 Direct	+864.86%	Acquired	658.8% (price as of 2026-08-21)
May 23, 2012	DVA	S	2,628	$80.00	$210,240	925 Direct	-73.97%	Disposed	338.8% (price as of 2026-08-21)
May 23, 2012	DVA	F	6,122	$80.25	$491,290	3,553 Direct	-63.28%	Disposed	337.4% (price as of 2026-08-21)
May 23, 2012	DVA	M	8,750	$56.14	$491,225	9,675 Direct	+945.95%	Acquired	525.3% (price as of 2026-08-21)
May 17, 2011	DVA	M	1,867	—	—	31,467 Direct	-5.60%	Disposed	(price as of 2026-08-21)
May 17, 2011	DVA	M	4,866	—	—	14,584 Direct	-25.02%	Disposed	(price as of 2026-08-21)
May 17, 2011	DVA	S	855	$86.00	$73,530	925 Direct	-48.03%	Disposed	308.2% (price as of 2026-08-21)
May 17, 2011	DVA	F	1,012	$85.39	$86,415	1,780 Direct	-36.25%	Disposed	311.1% (price as of 2026-08-21)
May 17, 2011	DVA	M	1,867	$46.26	$86,367	2,792 Direct	+201.84%	Acquired	658.8% (price as of 2026-08-21)
May 17, 2011	DVA	S	1,666	$86.00	$143,276	925 Direct	-64.30%	Disposed	308.2% (price as of 2026-08-21)
May 17, 2011	DVA	F	3,200	$85.39	$273,248	2,591 Direct	-55.26%	Disposed	311.1% (price as of 2026-08-21)
May 17, 2011	DVA	M	4,866	$56.14	$273,177	5,791 Direct	+526.05%	Acquired	525.3% (price as of 2026-08-21)
April 13, 2011	DVA	A	5,000	—	—	5,000 Direct	—	Acquired	(price as of 2026-08-21)
Feb. 25, 2011	DVA	M	4,000	—	—	19,450 Direct	-17.06%	Disposed	(price as of 2026-08-21)
Feb. 25, 2011	DVA	S	1,103	$78.50	$86,586	925 Direct	-54.39%	Disposed	347.2% (price as of 2026-08-21)
Feb. 25, 2011	DVA	F	2,897	$77.52	$224,575	2,028 Direct	-58.82%	Disposed	352.8% (price as of 2026-08-21)
Feb. 25, 2011	DVA	M	4,000	$56.14	$224,560	4,925 Direct	+432.43%	Acquired	525.3% (price as of 2026-08-21)
Nov. 9, 2010	DVA	M	4,166	—	—	33,334 Direct	-11.11%	Disposed	(price as of 2026-08-21)
Nov. 9, 2010	DVA	M	1,500	—	—	23,450 Direct	-6.01%	Disposed	(price as of 2026-08-21)
Nov. 9, 2010	DVA	S	1,490	$72.40	$107,876	500 Direct	-74.87%	Disposed	384.9% (price as of 2026-08-21)
Nov. 9, 2010	DVA	F	2,676	$72.03	$192,752	1,990 Direct	-57.35%	Disposed	387.4% (price as of 2026-08-21)
Nov. 9, 2010	DVA	M	4,166	$46.26	$192,719	4,666 Direct	+833.20%	Acquired	658.8% (price as of 2026-08-21)
Nov. 9, 2010	DVA	S	330	$72.43	$23,902	500 Direct	-39.76%	Disposed	384.7% (price as of 2026-08-21)
Nov. 9, 2010	DVA	F	1,170	$72.03	$84,275	830 Direct	-58.50%	Disposed	387.4% (price as of 2026-08-21)
Nov. 9, 2010	DVA	M	1,500	$56.14	$84,210	2,000 Direct	+300.00%	Acquired	525.3% (price as of 2026-08-21)
June 17, 2010	DVA	M	1,300	—	—	24,950 Direct	-4.95%	Disposed	(price as of 2026-08-21)
June 17, 2010	DVA	S	191	$66.22	$12,648	500 Direct	-27.64%	Disposed	430.1% (price as of 2026-08-21)
June 17, 2010	DVA	F	1,109	$65.81	$72,983	691 Direct	-61.61%	Disposed	433.4% (price as of 2026-08-21)
June 17, 2010	DVA	M	1,300	$56.14	$72,982	1,800 Direct	+260.00%	Acquired	525.3% (price as of 2026-08-21)
March 12, 2010	DVA	M	12,500	—	—	37,500 Direct	-25.00%	Disposed	(price as of 2026-08-21)
March 12, 2010	DVA	M	8,750	—	—	26,250 Direct	-25.00%	Disposed	(price as of 2026-08-21)
March 12, 2010	DVA	S	3,283	$62.50	$205,188	500 Direct	-86.78%	Disposed	461.7% (price as of 2026-08-21)
March 12, 2010	DVA	F	9,217	$62.74	$578,275	3,783 Direct	-70.90%	Disposed	459.5% (price as of 2026-08-21)
March 12, 2010	DVA	M	12,500	$46.26	$578,250	13,000 Direct	+2500.00%	Acquired	658.8% (price as of 2026-08-21)
March 12, 2010	DVA	S	920	$62.50	$57,500	500 Direct	-64.79%	Disposed	461.7% (price as of 2026-08-21)
March 12, 2010	DVA	F	7,830	$62.74	$491,254	1,420 Direct	-84.65%	Disposed	459.5% (price as of 2026-08-21)
March 12, 2010	DVA	M	8,750	$56.14	$491,225	9,250 Direct	+1750.00%	Acquired	525.3% (price as of 2026-08-21)
March 2, 2009	DVA	A	50,000	—	—	50,000 Direct	—	Acquired	(price as of 2026-08-21)
Aug. 1, 2008	DVA	A	35,000	—	—	35,000 Direct	—	Acquired	(price as of 2026-08-21)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II)

Options, RSUs and convertible securities reported on Form 4 Table II.

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
Dec. 28, 2023	ELTX	Stock Option (right to buy)	Common Stock (4,100)	$8.26	Dec. 28, 2033	4,100	Acquired
Feb. 13, 2014	DVA	Stock Appreciation Right	Common Stock (13,168)	$23.13	March 2, 2014	13,168	Disposed
Dec. 17, 2013	DVA	Stock Appreciation Rights	Common Stock (4,766)	$23.13	March 2, 2014	4,766	Disposed
May 13, 2013	DVA	Stock Appreciation Right	Common Stock (1,200)	$46.26	March 2, 2014	1,200	Disposed
March 19, 2013	DVA	Stock Appreciation Right	Common Stock (2,000)	$117.88	March 19, 2018	2,000	Acquired
March 19, 2013	DVA	Stock Appreciation Right	Common Stock (2,000)	$117.88	March 19, 2018	2,000	Acquired
March 6, 2013	DVA	Stock Appreciation Right	Common Stock (1,333)	$46.26	March 2, 2014	1,333	Disposed
March 6, 2013	DVA	Stock Appreciation Right	Common Stock (2,917)	$56.14	Aug. 1, 2013	2,917	Disposed
Dec. 18, 2012	DVA	Stock Appreciation Right	Common Stock (750)	$110.68	Dec. 18, 2017	750	Acquired
Nov. 15, 2012	DVA	Stock Appreication Right	Common Stock (7,000)	$46.26	March 2, 2014	7,000	Disposed
Aug. 6, 2012	DVA	Stock Appreciation Right	Common Stock (4,967)	$46.26	March 2, 2014	4,967	Disposed
Aug. 6, 2012	DVA	Stock Appreciation Right	Common Stock (2,917)	$56.14	Aug. 1, 2013	2,917	Disposed
May 23, 2012	DVA	Stock Appreciation Right	Common Stock (8,000)	$46.26	March 2, 2014	8,000	Disposed
May 23, 2012	DVA	Stock Appreciation Right	Common Stock (8,750)	$56.14	Aug. 1, 2013	8,750	Disposed
May 17, 2011	DVA	Stock Appreciation Right	Common Stock (1,867)	$46.26	March 2, 2014	1,867	Disposed
May 17, 2011	DVA	Stock Appreciation Right	Common Stock (4,866)	$56.14	Aug. 1, 2013	4,866	Disposed
April 13, 2011	DVA	Stock Appreciation Right	Common Stock (5,000)	$86.70	April 13, 2016	5,000	Acquired
Feb. 25, 2011	DVA	Stock Appreciation Right	Common Stock (4,000)	$56.14	Aug. 1, 2013	4,000	Disposed
Nov. 9, 2010	DVA	Stock Appreciation Right	Common Stock (4,166)	$46.26	March 2, 2014	4,166	Disposed
Nov. 9, 2010	DVA	Stock Appreciation Right	Common Stock (1,500)	$56.14	Aug. 1, 2013	1,500	Disposed
June 17, 2010	DVA	Stock Appreciation Right	Common Stock (1,300)	$56.14	Aug. 1, 2013	1,300	Disposed
March 12, 2010	DVA	Stock Appreciation Right	Common Stock (12,500)	$46.26	March 2, 2014	12,500	Disposed
March 12, 2010	DVA	Stock Appreciation Right	Common Stock (8,750)	$56.14	Aug. 1, 2013	8,750	Disposed
March 2, 2009	DVA	Stock Appreciation Right	Common Stock (50,000)	$46.26	March 2, 2014	50,000	Acquired
Aug. 1, 2008	DVA	Stock Appreciation Right	Common Stock (35,000)	$56.14	Aug. 1, 2013	35,000	Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 1 holding

Securities held when first becoming an insider, per SEC Form 3.

Date	Ticker	Security	Shares	Ownership
Feb. 4, 2021	ELTX	Stock Option (Right to Buy)→ Common Stock	—	Direct